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<p>Laptops are ideal for business and personal use by its
compact size and capabilities. Bluetooth technology in combination with a
notebook PC extends its use and effectiveness. The Acer TravelMate 2420 comes
equipped with Bluetooth and can be functional in a few steps. <br />
<p><br />
<p>1. Download Bluetooth driver in the Resources section. <br />
<p><br />
<p>2. Follow the instructions to install the driver for your
Acer TravelMate 2420. <br />
<p><br />
<p>3. Press the "Bluetooth Communication" button on
the front of the computer. The button is located on the left side of the
"Wireless Communication" button. The light will remain lit to
indicate that Bluetooth is ready to run on your computer. There will also be a
Bluetooth icon visible on your screen. <br />
<p><br />
<p>4. Prepare your paired Bluetooth device. Acer TravelMate
2420 is ready to connect to your Bluetooth device. <br />

It appears that your Acer has 3 ports in the front center bottomportion of the laptop. One of them should be for plugging in an external microphone, one should be for external speakers, and one should be an input jack.http://complap.com/yahoo_site_admin/assets/images/acer-travelmate-2420-2.192120139_std.jpg

It appears that your Acer has 3 ports in the front center bottom
portion of the laptop. One of them should be for plugging in an
external microphone, one should be for external speakers, and one
should be an input jack.
http://complap.com/yahoo_site_admin/assets/images/acer-travelmate-2420-2.192120139_std.jpg

Try to turn off automatic updates. Right-click on MyComputer icon, select properties, Click on Automatic Updates, turn off automatic updates. Maybe it's trying to download updates automatically and this will slow down the computer.
If that is the problem, you have to make sure you get all your updates manually first and then change back settings to automatically download updates afterwards.
Please let me know if this still doesn't help.